Trend lines are shown when slope is significantly different from 0 at the p < 0.05 level. An orange line signifies an overall positive trend, and purple signifies a negative trend. Note that in the final report we will only test for trend when N >= 30. However, I have relaxed that requirement for the purposes of this document so that trends are highlighted when N >= 20. This means that some trends shown here will not be present in the final document. Dashed lines represent mean values of time series unless the indicator is an anomaly, in which case the dashed line is equal to 0. Shaded regions indicate the past ten years. If there are no new data for 2018, the shaded region will still cover this time period.

Mid-Atlantic Bight

Ocean Temperature

SST

MAB seasonal sea surface temperature time series overlaid onto 2019 seasonal spatial anomalies.

MAB seasonal sea surface temperature time series overlaid onto 2019 seasonal spatial anomalies.

Bottom temperature

Annual bottom temperature in the Mid-Atlantic Bight.

Annual bottom temperature in the Mid-Atlantic Bight.

Chlorophyll and Primary Productivity

Primary production

Monthly primary production trends show the annual cycle (i.e. the peak during the summer months) and the changes over time for each month.

Monthly primary production trends show the annual cycle (i.e. the peak during the summer months) and the changes over time for each month.

Sesonal chlorophyll a & primary production

Weekly chlorophyll concentrations and primary productivity in the Mid-Atlantic are shown for by the colored line for 2019. The long-term mean is shown in black and shading indicates +/- 1 sample SD.

Weekly chlorophyll concentrations and primary productivity in the Mid-Atlantic are shown for by the colored line for 2019. The long-term mean is shown in black and shading indicates +/- 1 sample SD.

Chesapeake Bay Water Quality Attainment

Water quality attainment in Chesapeake Bay following rolling three year assessment periods.

Water quality attainment in Chesapeake Bay following rolling three year assessment periods.

Chesepeake Bay Salinity Anomolies

Write up on anomalies in salinity we saw in 2018,2019 following record breaking rain in 2018. The low salinities impacted hypoxia, fish and oysters.

Salinity in Chesapeake Bay throughout 2018 (blue) and 2019 (red) as well as the daily average 2008-2019 (black).

Salinity in Chesapeake Bay throughout 2018 (blue) and 2019 (red) as well as the daily average 2008-2019 (black).

Zooplankton

Euphausiids + Cnidarians

Stratified abundance of cnidarians and euphausiids in Mid-Atlantic Bight.

Stratified abundance of cnidarians and euphausiids in Mid-Atlantic Bight.

Small and Large Calanoid stratified abundance

Abundance anomaly

Large (red) and small-bodied (blue) copepod abundance in the Mid-Atlantic Bight.

Large (red) and small-bodied (blue) copepod abundance in the Mid-Atlantic Bight.

Small-large index

Zooplankton Diversity

Zooplankton diversity in the Mid-Atlantic Bight.

Zooplankton diversity in the Mid-Atlantic Bight.

OI abundance

Cold Pool Index

Cold pool index - mean bottom temperature anomaly for Sept-Oct in the MAB.

Marine Heat Wave

Notes

Marine heatwave events (red) in the Mid-Atlantic occuring in 2019.

Marine heatwave events (red) in the Mid-Atlantic occuring in 2019.

Marine heatwave cumulative intesity (left) and maximum intensity (right) in the Mid-Atlantic Bight.

Marine heatwave cumulative intesity (left) and maximum intensity (right) in the Mid-Atlantic Bight.

Maximum intensity heatwave anomaly in the Mid-Atlantic Bight occuring on July 22, 2019.

Maximum intensity heatwave anomaly in the Mid-Atlantic Bight occuring on July 22, 2019.

Shelfwide Indicators

Seasonal SST anomaly

Seasonal sea surface temperature anomalies for 2019 over the Northeast US Shelf.

Seasonal sea surface temperature anomalies for 2019 over the Northeast US Shelf.

Long-term SST

Average annual sea surface temperature (SST) over the Northeast US Shelf.

Average annual sea surface temperature (SST) over the Northeast US Shelf.

GSI

Notes
Index representing the north wall of the Gulf Stream. Positive values represent a more northerly Gulf Stream position.

Index representing the north wall of the Gulf Stream. Positive values represent a more northerly Gulf Stream position.

Warm Core Rings

Warm core ring formation on the Northeast US Shelf.

Warm core ring formation on the Northeast US Shelf.

NERRs water quality

Potentially possible to get map like this for DO, chl and nitrogen. Not this year though.

I’ve asked for the total number of events per year.